11.   The size of the new specimen led Sereno and his colleagues to believe the African predator had dethroned Tyrannosaurus as the king of the predators.

12.   A study of the new specimen is published Friday in the journal Science.

13.   The new specimen has not been named and its formal description has not been completed, the researchers said.

14.   The new specimen has not been named, the researchers said.

15.   The new specimen is more than twice as big as any previously reported coprolite from a meat-eating animal, the researchers said.

16.   The new specimens consist of the upper and lower jaw bones of two dinosaur species never before seen, said Wyss.